Fog machine



FIG. 1 is a front view of a fog machine showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view of a closed state thereof; and,

FIG. 8 is a perspective view of an open state thereof.

The broken lines in the drawings depict unclaimed portions of the fog machine and form no part of the claimed design. 

CLAIM The ornamental design for a fog machine, as shown and described. 